The University of Sheffield
Department of Mechanical Engineering

Dr Christophe Pinna

Dr C Pinna

Senior Lecturer in Mechanical Engineering

Head of Solids and Materials Teaching Group

Department of Mechanical Engineering
Sir Frederick Mappin Building
Mappin Street
Sheffield
S1 3JD
UK

Telephone: +44(0)114 222 7831
Fax: +44(0)114 222 7890

email : c.pinna@sheffield.ac.uk

Profile

Christophe Pinna obtained his PhD from Ecole Polytechnique in France in 1997 in the field of fatigue and fracture. He joined the Department in 1998 as a post-doctoral Research Associate and started to work on the thermo-mechanical processing of metals. He became Research Fellow the same year and Lecturer in 2000. He was promoted to Senior Lecturer in 2008.

Areas of Research

Dr Pinna's research activities are in the fields of mechanics of materials, experimental mechanics and computational solid mechanics applied to the areas of the thermo-mechanical processing of metals (including forging, rolling and friction stir welding), composites, fatigue, damage and fracture as well as machining. The work involves multi-scale experiments at both room and elevated temperatures using conventional as well as small-scale testing machines (tensile and bending inside a Scanning Electron Microscope).

Full-field strain measurement techniques including optical 3D Digital Image Correlation, Scanning Electron Microscopy-based Digital Image Correlation and microgrids generated using electron lithography are being used to quantify strain distributions in specimens as well as over representative areas of microstructures.

Modelling techniques involve finite element models (including implicit/explicit, arbitrary Langrangian-Eulerian and XFEM formulations) combined with cellular automata for damage modelling as well as crystal plasticity finite element models coupled with phase-field models for simulations of microstructure deformation and evolution (recrystallization and phase transformations including texture prediction).

Projects are funded through grants from EPSRC, the European Union and industry.

Current Research Projects

Four of Dr Pinna's PhD students who have graduated recently:

Teaching

MEC313 Finite Element Techniques
MEC6440 Advanced Finite Element Modelling

Research Grants

Books

  • Palmiere EJ, Mahfouf M & Pinna C (2003) International Conference on Thermomechanical Processing: Mechanics, Microstructure & Control..

Journal articles

Chapters

  • Talamantes-Silva J, Beynon JH & Pinna C (2006) Rolling of Aluminium - 1: Thermomechanical Processing and FEM simulation In Hirsch J (Ed.), Virtual Fabrication of Aluminium Products - Microstructural Modeling in Industrial Aluminium Fabrication Processes (pp. 247-274). WILEY-VCH.
  • Talamantes-Silva J, Beynon JH & Pinna C (2006) Rolling of Aluminium - 2: Practical aspects for finite element model development In Hirsch J (Ed.), Virtual Fabrication of Aluminium Products - Microstructural Modeling in Industrial Aluminium Fabrication Processes WILEY-VCH.

Conferences

  • Lopez-Pedrosa M, Zanganeh M, Tai YH & Pinna C (2012) 3D Digital Image Correlation (DIC) analysis in relation to damage development in third generation AA2050-T851 aluminium alloy. Journal of Physics: Conference Series, 382(012034)
  • Zhang G, Mahfouf M, Zhang Q, Gaffour S-A, Yates JR, Soberanis SA, Pinna C & Panoutsos G (2011) Systems-Modelling of Compact Tension Energy in High Strength Pipeline Steel
  • Mahfouf M, Zhang Q, Yates JR, Pinna C & Panoutsos G (2011) Model Fusion via a Master Fuzzy System with Special Application to Engineering Materials
  • Alborzi E, Blakey SG, Ghadebigi H, Pinna C, Wilson CW & Pourkashanian M (2011) Analysis of the structure of deposited materials at inner surface of jet fuel injector feed arm with Optical and Scanning Electron Microscopy. 12th International Conference on Stability, Handling and Use of Liquid Fuels 2011, 2, 1120-1148.
  • Lan YJ & Pinna C (2008) A finite element model of the heterogeneous deformation of austenite and ferrite in a duplex stainless steel under hot plane strain compression. ADVANCES IN HETEROGENEOUS MATERIAL MECHANICS 2008, 312-315.
  • Tai YH, Asquith DT & Yates JR (2008) Optical based Characterisation of an Aluminium Alloy
  • Pinna C & Lan Y (2007) Local strain measurement in hot deformed microstructures. Advances in Experimental Mechanics V, 7-8, 167-172.
  • Boldetti C, Pinna C, Howard I & Gutierrez G (2005) Experimental measurement of the deformation in hot rolling of aluminium 1% Mn: the grid technique. Advances in Experimental Mechanics IV, 3-4, 111-116.
  • Ghadbeigi H, Bradbury SR, Pinna C & Yates JR () Application of electron-beam lithography technique for the determination of micro-scale plastic strain due to machining. 10th CIRP International Workshop on Modeling of Machining Operations
  • Martin G, Caldemaison D, Bornert M, Pinna C, Veron M, Chebab B, Fourmentin R, Mithieux JD, Yerra SK, Delannay L, Pardoen T & Brechet T () Determination of high temperature micro-scale strain distribution – application to duplex stainless steels
  • Hernandez-Castillo LE, Beynon JH, Pinna C & van der Zwagg S () Determination of microscale deformation in hot worked steel, 387.
  • Caminero MA, Pavlopoulou S, Lopez-Pedrosa M, Nicolaisson BG, Pinna C & Soutis C () Digital Image Correlation analysis applied to monitor damage evolution of composite plates with stress concentrations and bonded patch repairs. 15th European Conference on Composite Materials
  • Hernandez-Castillo LE, Rupin N, Boldetti C, Pinna C & Bornert M () Evaluation of local strain fields in hot worked stainless steel. International Conference on full-field measurement techniques and their applications in experimental solid mechanics
  • Yates JR, Zanganeh M, Tai YH, Asquith DT, Pinna C & Tomlinson RA () Experimental evaluation of T stress. ESIA10 Conference
  • Pinna C, Beynon JH, Sellars CM & Bornert M () Experimental investigation and micromechanical modelling of hot deformation of duplex stainless steels. 39th Annual Conference of Metallurgists 2000, Thermomechanical Processing of Steel, 16.
  • Boumaiza S, Pinna C & Yates JR () Finite Element Modelling of Friction Stir Welding
  • Rupin N, Bornert M, Gilormini P, Pinna C & Zaoui A () Homogeneisation variationnelle pour l'analyse des deformations a chaud d'aciers biphases. 17ieme Congres Francais de Mecanique
  • Rupin N, Bornert M, Gilormini P, Zaoui A & Pinna C () Influence of microstructural morphology on viscoplastic flow of two-phase polycrystals. 43rd Technical Annual Meeting Society of Engineering Science
  • Ghadbeigi H, Pinna C, Celotto S & Yates JR () In-situ strain and damage analyses of Dual-Phase steels at micro-scale using Digital Image Correlation
  • Ghadbeigi H, Pinna C & Celotto S () Local damage initiation mechanisms of a DP steel: surface observations vs. mid-plane deformation. European Congress and Exhbition on Advanced Materials and Processes
  • Colonna L, Dimitriou R, Pinna C & Zhu Q () Measurement of local strain heterogeneity in AA5182 after hot rolling deformation. Int. Conf. on Thermomechanical Processing: Mechanics, Microstructure & Control, 393.
  • Pinna C & Doquet V () Mode II fatigue crack propagation in a maraging steel. 6th International Conference on Fatigue
  • Zhang Q, Mahfouf M, Yates JR, Pinna C & Panoutsos G () Model fusion via a master fuzzy system with special application to engineering materials. 18th World Congress of the International Federation of Automatic Control
  • Pinna C, Higginson RL & Beynon JH () Modelling of the effect of lubrication on texture evolution during hot rolling. 3rd Conference on Modelling of Metal Rolling Processes
  • Lan Y & Pinna C () Modelling static recrystallisation textures using a coupled crystal plasticity-phase field technique. 16th International Conference on the Textures of Materials
  • Lan Y & Pinna C () Modelling textures formed during the plane strain compression and subsequent static recrystallisation of body-centred cubic (BCC) metals. 7th International Conference on Processing and Manufacturing of Advanced Materials
  • Lan Y & Pinna C () Modelling the microstructural evolution during the static recrystallisation of aluminium alloy AA5052 by a level set method
  • Lan Y & Pinna C () Modelling the static recrystallisation texture of FCC metals using a phase field method
  • Ghadbeigi H, Bradbury SR, Pinna C & Yates JR () On the modelling of chip formation in orthogonal cutting: damage mechanics approach
  • Tai YH, Asquith DT, Pinna C & Yates JR () Optical Based Material Characterisation of an aluminium alloy
  • Rupin N, Bornert M, Gilormini P, Zaoui A & Pinna C () Potential influence of microstructural morphology on the viscoplastic flow of two-phase polycrystals. 11th International Symposium on Continuum Models and Discrete Systems
  • Zhang Q, Mahfouf M, de Leon L, Boumaiza S, Yates JR, Pinna C & Greene RJ () Prediction of Machining Induced Residual Stresses in Aluminium Alloys Using a Hierarchical Data-Driven Fuzzy Modelling Approach
  • Pinna C & Doquet V () Quantification of friction effects during mode II fatigue crack propagation in a maraging steel
  • Beynon JH, Higginson RL & Pinna C () Rolling Experiments, texture measurements and computer-based predictions: closing the loop. 39th Annual Conference of Metallurgists 2000, Thermomechanical Processing of Steel, 121.
  • Pinna C () Strain distribution at the grain scale of hot worked metals
  • Ghadbeigi H, Pinna C, Celotto S & Yates JR () Strain Evolution Measurement at the microscale of a Dual Phase Steel using Digital Image Correlation
  • Zhang G, Mahfouf M, Zhang Q, Gaffour S, Yates JR, Ayvar-Soberanis S, Pinna C & Panoutsos G () Systems modelling of compact tension energy in high strength pipeline steels. 18th World Congress of the International Federation of Automatic Control
  • Pinna C, Higginson RL & Beynon JH () Uncertainties in modelling the evolution of crystallographic texture during hot rolling